A survey of harmonic voltages and currents at distribution substations

The authors report seven day measurements of harmonic current and voltage made at the sending out of five feeders. The comprehensive survey monitored voltage and current distortion at eleven locations: five distribution feeders, one large apartment building, three industrial customers, and two commercial. The major goals are to present different ways of recording and displaying harmonics, to explain the results, and to compare them with existing engineering recommendations.<
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